get_next_line_utils_bonus.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   get_next_line_utils_bonus.c                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ana-lda- <ana-lda-@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/05/17 11:11:12 by ana-lda-          #+#    #+#             */
/*   Updated: 2024/05/25 21:25:41 by ana-lda-         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "get_next_line_bonus.h"

size_t	ft_strlen(const char *s)
{
	size_t	i;

	i = 0;
	while (!s)
		return (0);
	while (s[i])
		i++;
	return (i);
}

char	*ft_strchr(const char *s, int c)
{
	int	i;

	i = 0;
	if (!s)
		return (NULL);
	while (s[i] && s[i] != (unsigned char)c)
		i++;
	if (s[i] == (unsigned char)c)
		return ((char *)&s[i]);
	return (0);
}

char	*ft_strjoin(char *s1, const char *s2)
{
	char	*new;
	size_t	i;
	size_t	j;

	if (!s1)
	{
		s1 = malloc(sizeof(char) * 1);
		s1[0] = '\0';
	}
	new = malloc(sizeof(char) * (ft_strlen(s1) + ft_strlen(s2) + 1));
	if (!new)
		return (NULL);
	i = -1;
	while (s1[++i])
		new[i] = s1[i];
	j = -1;
	while (s2[++j])
		new[i + j] = s2[j];
	free(s1);
	new[i + j] = '\0';
	return (new);
}